Papua New Guinea
This is diving's last frontier, a wild land surrounded by a sea of possibilities. Papua New Guinea, aka PNG, is known as the birthplace of muck diving, and Milne Bay remains one of the premier locations on the planet to seek out cryptic critters. But there is much more to discover in the waters surrounding the world's second largest island. Kimbe Bay is home to half the world's species of coral, while Rabaul offers towering walls and electrifying drift dives. The fjords of Cape Nelson hold forgotten WWII wrecks, and one does not have to travel far from Port Moresby to discover a seascape of coral grottoes and bommies.